公开(公告)号：US06612134B1

公开(公告)日：2003-09-02

申请号：US08973213

申请日：1997-12-04

申请人： Koji Shimoda ,  Haruhiko Aikawa ,  Motohide Yoshida ,  Takashi Hasegawa

发明人： Koji Shimoda ,  Haruhiko Aikawa ,  Motohide Yoshida ,  Takashi Hasegawa

IPC分类号： C03B37018

CPC分类号： C03C25/12 ,  C03C23/0075 ,  C03C25/1065

摘要： The present invention relates to a method of making an optical fiber product. In particular, this manufacturing method is characterized in that, between a drawing step in which a coated optical fiber comprising a glass fiber and a primary coating layer disposed around the outer periphery of the glass fiber is wound around a reel and a processing step in which the coated optical fiber wound around the reel is rewound around a bobbin, a control step is provided for holding the coated optical fiber wound around the reel in a place with a mean atmospheric temperature T (>0° C.) for at least 30,000/T2 (hr) and, in the case where a coloring layer or the like is disposed around the outer periphery of the coated optical fiber, for at least 30,000/T2 (hr) but not longer than 210,000/T2 (hr). The optical fiber product such as a ribbon-type optical fiber obtained in consequence of this control step, effectively suppressed are increase in transmission loss caused by delamination between the glass fiber and the primary coating layer disposed around its outer periphery, and delamination of the coloring layer disposed around the outer periphery of the coated optical fiber or the like.

摘要翻译： 本发明涉及一种制造光纤产品的方法。 特别地，该制造方法的特征在于，将包括玻璃纤维的涂覆光纤和布置在玻璃纤维的外周周围的主要涂层缠绕在卷轴上的拉伸步骤和其中 缠绕在卷轴上的被覆光纤围绕绕线筒回绕，提供控制步骤，用于将缠绕在卷轴上的涂覆的光纤保持在平均气温T（> 0℃）的地方至少30,000 / T2（小时），并且在着色层等围绕涂覆光纤的外周设置至少30,000 / T2（小时）但不大于210,000 / T2（小时）的情况。 有效地抑制了由该控制步骤得到的带状光纤等光纤产品，由玻璃纤维与设置在其外周侧的一次被覆层之间的分层而导致的传输损耗的增加，着色 层设置在被覆光纤等的外周。

公开(公告)号：US06519404B1

公开(公告)日：2003-02-11

申请号：US09890166

申请日：2001-07-27

申请人： Motohide Yoshida ,  Katsuyuki Tsuneishi ,  Masao Koida ,  Katsuya Nagayama

发明人： Motohide Yoshida ,  Katsuyuki Tsuneishi ,  Masao Koida ,  Katsuya Nagayama

IPC分类号： G02B602

CPC分类号： C03B37/032 ,  C03B37/027 ,  C03B37/02745 ,  C03B2203/06 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  C03C25/12 ,  C03C25/18

摘要： In a fabrication method of coated optical fiber 21, the coated optical fiber 21 is fabricated by heating to soften an end of an optical fiber preform 11 to draw a glass fiber 13 out therefrom, laying coatings 16, 19 on the glass fiber 13 to make the coated optical fiber 21, and guiding the coated optical fiber 21 via a swing guide roller 23 periodically swinging, to twist the coated optical fiber 21, thereby imparting twists about the axis to the glass fiber 13 inside the coated optical fiber 21. The fabrication method comprises a step of passing the coated optical fiber 21 having passed the swing guide roller 23, through a free zone (between 26 and 27) in which the coated optical fiber 21 is allowed to freely rotate about the axis, and thereby longitudinally canceling out elastic torsion stored in the coated optical fiber 21 because of longitudinally alternate inversion of twist directions thereof, wherein a zone length L (m) of the free zone is not less than Lo (m) defined as follows: Lo (m)=[a maximum drawing speed of the coated optical fiber (m/min)]/[the number of clockwise and counterclockwise swing motions per unit time of the swing guide roller (motions/min)].

摘要翻译： 在涂覆光纤21的制造方法中，通过加热来制造涂覆光纤21，以软化光纤预制棒11的端部，从中拉出玻璃纤维13，将玻璃纤维13上涂覆涂层16,19 涂布光纤21，经由摆动导向辊23周期性摆动地引导被覆光纤21，使被覆光纤21扭曲，从而使被覆光纤21内的玻璃纤维13绕轴线扭曲。 方法包括使已经通过摆动引导辊23的涂覆光纤21通过允许涂覆光纤21绕轴线自由旋转的自由区（26和27之间）的步骤，从而纵向消除 由于其扭转方向的纵向交替反转，存储在涂覆光纤21中的弹性扭转，其中自由区的区段长度L（m）不小于如下定义的Lo（m） ：Lo（m）= [涂覆光纤的最大拉伸速度（m / min）] / [摆动导辊的每单位时间的顺时针和逆时针摆动运动的数量（运动/分钟）]。

公开(公告)号：US07016582B2

公开(公告)日：2006-03-21

申请号：US10473678

申请日：2003-03-04

申请人： Iwao Okazaki ,  Ichiro Tsuchiya ,  Shinji Ishikawa ,  Motohide Yoshida ,  Tetsuya Haruna ,  Kazuyuki Soma

发明人： Iwao Okazaki ,  Ichiro Tsuchiya ,  Shinji Ishikawa ,  Motohide Yoshida ,  Tetsuya Haruna ,  Kazuyuki Soma

IPC分类号： G02B6/02 ,  C03B37/028 ,  C03B37/02 ,  C03B37/07 ,  C03B37/22

CPC分类号： G02B6/024 ,  C03B37/01217 ,  C03B2203/12 ,  C03B2203/302 ,  C03B2203/31 ,  G02B6/105

摘要： Based on an intermediate 20A in which a cladding portion 22 is formed on the outer periphery of a core portion 21, a pair of holes 23 and 24 are provided parallel to the z axis on both sides of the core portion 21 within the cladding portion 22, and an intermediate 20 is thereby fabricated. In this intermediate 20, a width Ry in the y-axis direction is made smaller than a width Rx in the x-axis direction. Moreover, a cylindrical stress applying part 33 is inserted into a hole 23 of the intermediate 20, and a cylindrical stress applying part 34 is inserted into a hole 24 thereof. Thus, a preform 40 is formed. These materials are drawn and integrated together, and a polarization maintaining optical fiber is thereby manufactured.

摘要翻译： 基于在芯部21的外周形成有包覆部22的中间体20A，在包层部的芯部21的两侧与z轴平行地设置一对孔23,24 22，由此制造中间体20。 在该中间体20中，使y轴方向的宽度Ry比x轴方向的宽度Rx小。 此外，将圆筒形应力施加部33插入到中间体20的孔23中，将圆筒形应力施加部34插入其中。 因此，形成预制件40。 这些材料被拉伸并集成在一起，由此制造偏振保持光纤。